根据对话内容，在空白处填写适当的话语（话语可能是一个句子，也可能是一个短语或一个词），使对话完整。

（Thomas was very nervous before going to have a meal at his friend’s house.）

Mr. Lee: Thomas, you look worried. 1．____________?

Thomas: I’m going to have a meal at a Korean friend’s house and I don’t know what I am supposed to do.

Mr. Lee: I have been to Korea twice and I know some Korean table manners.

Thomas: Oh, that’s great! I’ve heard that it’s OK to make noise when you eat in Korea.

Mr. Lee: I guess so, but it depends. When you eat 2．____________, for example, you have to make noise.

Thomas: What do you mean “have to”?

Mr. Lee: It’s said that noodles taste better that way. It shows that you 3．_____________.

Thomas: That sounds interesting.

Mr. Lee: At other times try to eat as quietly as possible. It’s not polite to talk while chewing food.

Thomas: I see. 4． _____________?

Mr. Lee: Yes, they use chopsticks for most foods. But for rice and soups they use spoons.

       Remember: Never hold both at the same time.

Thomas: Is it OK that I eat the food fast and leave the table early?

Mr. Lee: Not at all. In Korean culture, older people are highly respected（尊敬）, you must wait for the elders to hold their spoons first. And you should eat neither too fast nor too slowly. You should keep pace（速度）with the elders. When the elders finish the meal, you can get up together.

Thomas: Oh, that’s quite different from ours. Thank you so much for 5．__________.

Mr. Lee: My pleasure. Please enjoy your meal.

One day, a teacher was giving a speech to his students. He held up a glass of water and asked the class, "How heavy do you think this glass of water is?"

The students' answers ranged from 20 g to 500 g. "It does not matter on the weight itself. It depends on how long you hold it. If I hold it for a minute, it is OK. If I hold it for an hour, I will have an ache in my right arm. If I hold it for a day, you will have to call an ambulance (救护车). It is exactly the same weight, but the longer I hold it, the heavier it becomes. "

If we carry our burdens (负担) all the time, sooner or later, we will not be able to carry on, the burden becoming increasingly heavier. "

"What you have to do is to put the glass down, rest for a while before holding it up again.”

We have to put down the burden sometimes, so that we can be refreshed (使恢复) and are able to carry on.

So before you return home from work tonight, put the burden of work down. Don't carry it back home. You can pick it up tomorrow.

Whatever burdens you are having now on your shoulders, let it down for a moment if you can.

1.The teacher brought a glass of water to the class because_________.

A. he was very thirsty??????????

B. his arms were strong????

C. it was a good example???????

D. he wants to share the water with students??

2."A glass of water" in this passage referred to (指)_________.

A. knowledge????? B. the burden?????? C. the time????????? D. the money???????

3.According to the teacher, you may feel_________ if you put down the burden sometimes.

A. more stressed???? B. much heavier???? C. more relaxed????? D. much happier

4.This was a lesson about_____

A. how to relax oneself in life???????? ???

B. how to solve a physics problem???

C. how to keep fit by drinking water???????

D. how to study well

5.Which of the following statements is TRUE according to the passage?

A. You could become heavier and heavier if you held a glass of water in your hand.

B. All the students in the class knew what the weight of the glass of water exactly was.

C. The teacher had a good way of making his lesson clear and easy to be understood.

D. All the students can understand the teacher’s lesson.